“To do great work one must be very idle as well as very industrious.”

“You can do very little with faith, but you can do nothing without it.”

“I said to him one day that the very slender reward which God had attached to the pursuit of serious inquiry was a sufficient proof that He disapproved of it, or at any rate that he did not set much store by it nor wish to encourage it.”

“Embryos think with each stage of their development that they have now reached the only condition that really suits them. This, they say, must certainly be their last, inasmuch as its close will be so great a shock that nothing can survive it. Every change is a shock; every shock is a pro tanto death. What we call death is only a shock great enough to destroy our power to recognize a past and a present as resembling one another. ”

“An apology for the devil: it must be remembered that we have heard one side of the case. God has written all the books.”

“I know not why, but all the noblest arts hold in perfection but for a very little moment. They soon reach a height from which they begin to decline, and when they have begun to decline it is a pity that they cannot be knocked on the head; for an art is like a living organism—better dead than dying.”

“we must judge men not so much by what they, as by what they make us feel that they have it in them to do. If a man has done enough in either painting, music, or the affairs of life, to make me feel that I might trust him in an emergency he has done enough”